RTC5 click carries an MCP79510 real-time clock/calendar with that uses SPI communication (mikroBUS MISO, MOSI, SCK and CS pins) along with a programmable interrupt for system output. The clock frequency is derived from an on-board 32.768kHz oscillator.

For backup power, RTC5 click has a coin-cell Lithium-polymer battery connector (CR2025 size; the picture shows a battery installed for illustration purposes). The chip has 64 bytes of battery-backed SRAM and 1 kbit of EEPROM for storing data, along with 128 bits of protected space for storing a unique ID. The clock/calendar automatically compensates for leap years and months shorter than 31 days.

This board is designed to use a 3.3V power supply only.

mikroBUS Click Boards Overview

Click boards come with header pins that you must solder yourself. After that, they just plug directly into a mikroBUS socket. mikroBUS is a specially designed plug-and-play pinout standard. The sockets are found on Clicker boards, the Flip & Click Arduino-compatible board, the Quail board, these mikromedia shields, the Microchip Curiosity board, and development systems from mikroElektronika (V7 systems and later).

You also can connect Click boards to many other popular platforms via these adapters: